表示复数的s不是自由语素，必须附着于名词。
The plural 's' is not a free form, as it must always be attached to a noun.
尽管在复数名词后使用撇号表示拥有看起来很自然，还是有权威反对这用法，比如语法学家RobertLowth。
Although it seemed natural to use an apostrophe in the possessive plural, authorities, such as the grammarian Robert Lowth, argued against this.
但当不可数名词前有表示数量的复数名词时，谓语动词用复数形式。
This is a collective noun. Though it appears in the singular form, it takes a plural predicate verb.
但当不可数名词前有表示数量的复数名词时，谓语动词用复数形式。
This is a collective noun. Though it appears in the singular form, it takes a plural predicate verb.
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